| Value | Category | Cases | |
|---|---|---|---|
| -9 | Don't know (spontaneous) | 1 |
1.5%
|
| 0 | Less than one day | 0 |
0%
|
| 1 | 4 |
6%
|
|
| 3 | 3 |
4.5%
|
|
| 4 | 2 |
3%
|
|
| 5 | 2 |
3%
|
|
| 7 | 6 |
9%
|
|
| 8 | 2 |
3%
|
|
| 14 | 4 |
6%
|
|
| 15 | 4 |
6%
|
|
| 16 | 3 |
4.5%
|
|
| 21 | 1 |
1.5%
|
|
| 25 | 1 |
1.5%
|
|
| 26 | 1 |
1.5%
|
|
| 30 | 2 |
3%
|
|
| 31 | 5 |
7.5%
|
|
| 32 | 2 |
3%
|
|
| 35 | 1 |
1.5%
|
|
| 37 | 1 |
1.5%
|
|
| 45 | 5 |
7.5%
|
|
| 50 | 2 |
3%
|
|
| 55 | 1 |
1.5%
|
|
| 60 | 2 |
3%
|
|
| 61 | 2 |
3%
|
|
| 65 | 3 |
4.5%
|
|
| 70 | 1 |
1.5%
|
|
| 90 | 4 |
6%
|
|
| 151 | 1 |
1.5%
|
|
| 180 | 1 |
1.5%
|
|
| Sysmiss | 81 |